vpMoment.cpp

/****************************************************************************
 *
 * ViSP, open source Visual Servoing Platform software.
 * Copyright (C) 2005 - 2023 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
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 * Edition License.
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 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Base for 2D moment descriptor
 *
 * Authors:
 * Filip Novotny
 *
*****************************************************************************/
 
#include <cstring>
#include <visp3/core/vpMoment.h>
#include <visp3/core/vpMomentDatabase.h>
#include <visp3/core/vpMomentObject.h>
vpMoment::vpMoment() : object(NULL), moments(NULL), values() {}
 
void vpMoment::linkTo(vpMomentDatabase &data_base)
{
  if (strlen(name()) >= 255) {
    throw(vpException(vpException::memoryAllocationError, "Not enough memory to initialize the moment name"));
  }
 
  std::strcpy(_name, name());
  this->moments = &data_base;
 
  data_base.add(*this, _name);
}
 
void vpMoment::update(vpMomentObject &moment_object) { this->object = &moment_object; }
 
VISP_EXPORT std::ostream &operator<<(std::ostream &os, const vpMoment &m)
{
  for (std::vector<double>::const_iterator i = m.values.begin(); i != m.values.end(); ++i)
    os << *i << ",";
 
  return os;
}
 
void vpMoment::printDependencies(std::ostream &os) const
{
  os << " WARNING : Falling back to base class version of "
        "printDependencies(). To prevent that, this has to be implemented in "
        "the derived classes!"
     << std::endl;
}